Upstream Oxygen O2 Sensor For 2009-2014 Chevrolet Malibu 2.4L，2011 Saab 9-5 2.0L
17,05 €
The front oxygen sensor is to detect the air-fuel ratio of the engine in different working conditions. 1 PCS Oxygen Sensors. The rear oxygen sensor is mainly to detect whether the three-way catalytic converter works normally.
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